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Chevy Silverado and GMC Sierra Axles

46 messages,  Last post on Mar 31, 2012 at 6:24 PM

You are in the Chevrolet Silverado & GMC Sierra Forum.

What is this discussion about? GMC Sierra 1500, Chevrolet Silverado 2500, Truck

Messages Page 2 of 5

#7 of 46 Re: Locking Rear Differential [lvrob] by 1offroader

Jul 21, 2007 (7:03 pm)

Replying to: lvrob (Jul 21, 2007 3:03 pm)
That's true, GM has a true locking diff. The heavy duty locking diff comes standard on the 6.0L Silverado along with the Super Duty transmission. The "pumpkin", axle housing, and shock mounts are noticeably larger on it than on the standard rear diff. It also has rear ABS discs, as opposed to the standard drums - a big safety "plus".
 
I've had my Silverado off road several times now and the locker works as advertised. Rear wheel spin is minimal before it engages.
 
Also, on the pavement, I've had it engage on very sharp turns. You can feel it, if you know what is going on with the truck. I've also heard and felt it unlock with a very slight "clank" a few times when straightening out the vehicle after a sharp turn. This is common and expected with lockers. In fact, for a locker, it seems very quiet. Ever heard of a "Detroit Locker"? Those things sounded like an old iron gate opening and closing - but they work!
 
Don't know yet about tire wear, as I only have about 8,500 mi. on the truck. I rotate my tires also. I have not noticed any unusual wear.
 
IMO the locker is significantly superior to limited slip, as featured on Tundra, F-150, and Dodge. However, limited slip is smoother and quieter when engaging and disengaging. LS also slips from day one - and those little clutches do wear out over time. The locker is more robust.
 
All depends on what you want. I'll put up with a small (and I mean small) amount of noise for the few occasions when it engages/disengages, for the superior "bite" I get offroad, in snow, mud, etc.
 
1offroader

#8 of 46 Re: Locking Rear Differential [1offroader] by lvrob

Jul 21, 2007 (9:15 pm)

Replying to: 1offroader (Jul 21, 2007 7:03 pm)
Thank you,
           Good info your confirming my info. Check this Motorweek coverage, good stuff:
http://www.mpt.org/motorweek/autoworld2613.shtml
 
I use my pickup for a beach vehicle & on back roads so off road traction is important, I'm not planning serious 4 wheeling so I'm thinking a 2 WD GM work truck with a G80 locking rear differential ~ $300 will do the job. I'll take robust & better traction & gladly put up with some noise.
 I'm surprised GM marketing isn't emphasizing this more, not everyone who buys a truck these days is a soccer mom, I really ding Edmund's & it's reviews for that especially, I don't think they even mentioned it. Kudos to GM engineering & Motorweek's coverage of this G80 Option.
  

#9 of 46 Re: Locking Rear Differential [lvrob] by 1offroader

Jul 22, 2007 (5:51 pm)

Replying to: lvrob (Jul 21, 2007 9:15 pm)
Regarding GM marketing...I haven't seen a decent TV ad yet for the new Silverado. The fact that it outsells the Tundra 6:1 (or whatever) is a bloody miracle, given the poor quality of GM advertising. That Toyota has gone to extraordinary lengths to create elaborate (and bizarre) ads for the Tundra should tell the competition it means business, even if the ads make little sense (to me at least).
 
Why can't GM come up with a decent ad??? Hey Chevy, for a fee I'll help you put together an ad that will sell a bundle of Silverados to other guys like me who use trucks.
 
Feel free to contact me. I'm not cheap, but I'm good!
 
1offroader

#10 of 46 Re: Locking Rear Differential [1offroader] by obyone

Jul 22, 2007 (10:34 pm)

Replying to: 1offroader (Jul 22, 2007 5:51 pm)
They spent all their ad dollars on those Transformers...

#11 of 46 92 3500 rear end by cbond

Aug 30, 2007 (1:00 pm)

#12 of 46 92 3500 rear end by cbond

Aug 30, 2007 (9:15 am)

what is the approximate cost to rebuild a 1-ton, dual rear end

#13 of 46 Re: 92 3500 rear end [cbond] by obyone

Aug 30, 2007 (9:35 am)

Replying to: cbond (Aug 30, 2007 9:15 am)
That would depend on who's doing the rebuilding. You or a shop.

#14 of 46 Re: 92 3500 rear end [obyone] by cbond

Aug 30, 2007 (9:51 am)

Replying to: obyone (Aug 30, 2007 9:35 am)
at a shop

#15 of 46 Not knowing what the particulars are.... by obyone

Aug 30, 2007 (12:00 pm)

as far as what parts need to be replaced on the rebuild. I assumed a total rebuild parts and labor in the $1200 range. Course you may find it cheaper to go to a junk yard for the parts as some shops will do that upon request.

#16 of 46 Re: Not knowing what the particulars are.... [obyone] by cbond

Aug 30, 2007 (1:00 pm)

Replying to: obyone (Aug 30, 2007 12:00 pm)
thank you, I was just feeling like I was being overcharged with an estimate.

Messages Page 2 of 5

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